Add daemon

.gitignore

@@ -1,5 +1,6 @@
 # Compiled sibs files
 sibs-build/
 compile_commands.json
-tests/sibs-build/
+
-tests/compile_commands.json
+gpu-screen-recorder-overlay-daemon/sibs-build/
+gpu-screen-recorder-overlay-daemon/compile_commands.json

build.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+[ $# -ne 1 ] && echo "usage: build.sh debug|release" && exit 1
+
+script_dir=$(dirname "$0")
+cd "$script_dir"
+
+sibs build --"$1" gpu-screen-recorder-overlay-daemon
+sibs build --"$1"
+echo "Successfully built"

gpu-screen-recorder-overlay-daemon/main.c

@@ -0,0 +1,68 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+
+static int xerror_dummy(Display *dpy, XErrorEvent *ee) {
+    (void)dpy;
+    (void)ee;
+    return 0;
+}
+
+static const KeySym toggle_overlay_key = XK_Z;
+static void grab_keys(Display *display) {
+    unsigned int numlockmask = 0; 
+    KeyCode numlock_keycode = XKeysymToKeycode(display, XK_Num_Lock);
+    XModifierKeymap *modmap = XGetModifierMapping(display);
+    for(int i = 0; i < 8; ++i) {
+        for(int j = 0; j < modmap->max_keypermod; ++j) {
+            if(modmap->modifiermap[i * modmap->max_keypermod + j] == numlock_keycode)
+                numlockmask = (1 << i); 
+        }
+    }   
+    XFreeModifiermap(modmap);
+
+    XErrorHandler prev_error_handler = XSetErrorHandler(xerror_dummy);
+    
+    Window root_window = DefaultRootWindow(display);
+    unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+    for(int i = 0; i < 4; ++i) {
+        XGrabKey(display, XKeysymToKeycode(display, toggle_overlay_key), Mod1Mask|modifiers[i], root_window, False, GrabModeAsync, GrabModeAsync);
+    }    
+    
+    XSync(display, False);
+    XSetErrorHandler(prev_error_handler);
+}
+
+static Window get_window_with_input_focus(Display *display) {
+    Window window = None;
+    int rev;
+    if(!XGetInputFocus(display, &window, &rev))
+        window = None;
+    return window;
+}
+
+int main() {
+    Display *display = XOpenDisplay(NULL);
+    if(!display) {
+        fprintf(stderr, "Error: XOpenDisplay failed\n");
+        return 1;
+    }
+
+    grab_keys(display);
+    const KeyCode overlay_keycode = XKeysymToKeycode(display, toggle_overlay_key);
+
+    XEvent xev;
+    for(;;) {
+        XNextEvent(display, &xev);
+        if(xev.type == KeyRelease && xev.xkey.keycode == overlay_keycode) {
+            Window window_with_input_focus = get_window_with_input_focus(display);
+            if(window_with_input_focus && window_with_input_focus != DefaultRootWindow(display)) {
+                char cmd[1024];
+                snprintf(cmd, sizeof(cmd), "/home/dec05eba/git/gpu-screen-recorder-overlay/sibs-build/linux_x86_64/debug/gpu-screen-recorder-overlay %ld", window_with_input_focus);
+                system(cmd);
+            }
+        }
+    }
+    return 0;
+}

gpu-screen-recorder-overlay-daemon/project.conf

@@ -0,0 +1,8 @@
+[package]
+name = "gpu-screen-recorder-overlay-daemon"
+type = "executable"
+version = "0.1.0"
+platforms = ["posix"]
+
+[dependencies]
+x11 = ">=1"

project.conf

@@ -4,6 +4,9 @@ type = "executable"
 version = "0.1.0"
 platforms = ["posix"]
 
+[config]
+ignore_dirs = ["gpu-screen-recorder-overlay-daemon"]
+
 [dependencies]
 x11 = ">=1"
 xext = ">=1"

src/main.cpp

@@ -5,6 +5,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <libgen.h>
 
 #include <X11/Xlib.h>
 #include <X11/cursorfont.h>
@@ -64,6 +65,11 @@ int main(int argc, char **argv) {
     if(argc != 2)
         usage();
 
+    std::string program_root_dir = dirname(argv[0]);
+    if(!program_root_dir.empty() && program_root_dir.back() != '/')
+        program_root_dir += '/';
+    program_root_dir += "../../../";
+
     int64_t target_window;
     if(!string_to_i64(argv[1], &target_window)) {
         fprintf(stderr, "Error: invalid number '%s' was specific for window argument\n", argv[1]);
@@ -94,11 +100,11 @@ int main(int argc, char **argv) {
         startup_error("failed to create window");
 
     mgl::MemoryMappedFile title_font_file;
-    if(!title_font_file.load("fonts/Orbitron-Bold.ttf", mgl::MemoryMappedFile::LoadOptions{true, false}))
+    if(!title_font_file.load((program_root_dir + "fonts/Orbitron-Bold.ttf").c_str(), mgl::MemoryMappedFile::LoadOptions{true, false}))
         startup_error("failed to load file: fonts/Orbitron-Bold.ttf");
 
     mgl::MemoryMappedFile font_file;
-    if(!font_file.load("fonts/Orbitron-Regular.ttf", mgl::MemoryMappedFile::LoadOptions{true, false}))
+    if(!font_file.load((program_root_dir + "fonts/Orbitron-Regular.ttf").c_str(), mgl::MemoryMappedFile::LoadOptions{true, false}))
         startup_error("failed to load file: fonts/Orbitron-Regular.ttf");
 
     mgl::Font title_font;
@@ -110,15 +116,15 @@ int main(int argc, char **argv) {
         startup_error("failed to load font: fonts/Orbitron-Regular.ttf");
 
     mgl::Texture replay_button_texture;
-    if(!replay_button_texture.load_from_file("images/replay.png"))
+    if(!replay_button_texture.load_from_file((program_root_dir + "images/replay.png").c_str()))
         startup_error("failed to load texture: images/replay.png");
 
     mgl::Texture record_button_texture;
-    if(!record_button_texture.load_from_file("images/record.png"))
+    if(!record_button_texture.load_from_file((program_root_dir + "images/record.png").c_str()))
         startup_error("failed to load texture: images/record.png");
 
     mgl::Texture stream_button_texture;
-    if(!stream_button_texture.load_from_file("images/stream.png"))
+    if(!stream_button_texture.load_from_file((program_root_dir + "images/stream.png").c_str()))
         startup_error("failed to load texture: images/stream.png");
 
     struct MainButton {
@@ -245,27 +251,6 @@ int main(int argc, char **argv) {
     };
 
     update_overlay_shape();
-
-    WindowTexture target_window_texture;
-    window_texture_init(&target_window_texture, display, target_window);
-
-    int target_window_texture_width = 0;
-    int target_window_texture_height = 0;
-    window_texture_get_size_or(&target_window_texture, &target_window_texture_width, &target_window_texture_height, target_window_size.x, target_window_size.y);
-
-    mgl_texture window_texture_ref = {
-        window_texture_get_opengl_texture_id(&target_window_texture),
-        target_window_texture_width,
-        target_window_texture_height,
-        MGL_TEXTURE_FORMAT_RGB,
-        32768,
-        32768,
-        true
-    };
-
-    mgl::Texture window_texture = mgl::Texture::reference(window_texture_ref);
-    mgl::Sprite window_texture_sprite(&window_texture);
-
     window.set_visible(true);
 
     Cursor default_cursor = XCreateFontCursor(display, XC_arrow);
@@ -280,10 +265,7 @@ int main(int argc, char **argv) {
     while(window.is_open()) {
         if(XCheckTypedWindowEvent(display, target_window, VisibilityNotify, &xev)) {
             if(xev.xvisibility.state) {
-                window_texture_on_resize(&target_window_texture);
+                
-                window_texture_ref.id = window_texture_get_opengl_texture_id(&target_window_texture);
-                window_texture_get_size_or(&target_window_texture, &window_texture_ref.width, &window_texture_ref.height, target_window_size.x, target_window_size.y);
-                window_texture = mgl::Texture::reference(window_texture_ref);
             }
         }
 
@@ -293,11 +275,6 @@ int main(int argc, char **argv) {
             target_window_size.y = xev.xconfigure.height;
             window.set_size(target_window_size);
             update_overlay_shape();
-
-            window_texture_on_resize(&target_window_texture);
-            window_texture_ref.id = window_texture_get_opengl_texture_id(&target_window_texture);
-            window_texture_get_size_or(&target_window_texture, &window_texture_ref.width, &window_texture_ref.height, target_window_size.x, target_window_size.y);
-            window_texture = mgl::Texture::reference(window_texture_ref);
         }
 
         if(window.poll_event(event)) {
@@ -305,7 +282,7 @@ int main(int argc, char **argv) {
                 main_button.button.on_event(event, window);
             }
 
-            if(event.type == mgl::Event::KeyPressed) {
+            if(event.type == mgl::Event::KeyReleased) {
                 if(event.key.code == mgl::Keyboard::Escape) {
                     window.close();
                     break;